JP2002168462A - Hot-water heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give warning of miswiring when a signal wire from another control unit for controlling a hot-water terminal unit is connected to an extra input terminal in case such an extra input terminal is present in a connection between the input terminals and output terminals as a result of the setting of a changeover switch. SOLUTION: A hot-water heating system is provided with a plurality of input terminals N1-N5 for inputting control signals from a control unit, a plurality of output terminals D1-D5 which are connected to the input terminals one by one or in a one-to-plurality relation, on-off valves B1-B5 for controlling the amount of hot water supplied to the hot-water terminal unit, which are connected to the individual output terminals, respectively, and a changeover means 12 for setting connection between the input terminals and the output terminals. In the case where the changeover means 12 switches the connection to the one-to-plurality relation, and where the signal wire from another control unit for controlling the hot-water terminal is connected to an extra input terminal in the connection, display means L1-L5, 14 display that the connection is miswiring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water heating system provided with a heat source device for supplying hot water and a plurality of hot water terminals such as floor heating panels to which hot water is circulated and supplied from the heat source device.

[0002]

2. Description of the Related Art Conventionally, a hot water heating system including a heat source device for supplying hot water and a plurality of hot water terminals (hereinafter simply referred to as terminal devices) such as a floor heating panel connected to the heat source device by a hot water pipe is known. Are known.

[0003] The heat source unit of this hot water heating system has a plurality of hot water valves (open / close valves) for controlling the amount of hot water supplied to a terminal on a hot water going header, and each of the hot water valves is controlled by opening / closing these hot water valves. It is configured to control the amount of hot water circulated and supplied to the terminal to heat the terminal.

FIG. 6 is an explanatory diagram showing an example of signal wiring of a heat source unit in a conventional hot water heating system. The heat source unit 2 is provided with a control board 5 on which a control device (not shown) for controlling a heating source (not shown) such as a burner, a circulation pump (not shown), and the like, and a hot water header, for example. A plurality of hot water valves (open / close valves) B1 to B5 are provided.

A plurality of terminal signal input terminals (hereinafter referred to as input terminals) N1 to N
5 and a plurality of hot water valve output terminals (hereinafter referred to as output terminals)
D1 to D5 are arranged.

The input terminals N1 to N5 and the output terminals D1 to D1
D5 is connected with a one-to-one connection relationship,
The output terminals D1 to D5 and the hot water valves B1 to B5 are wired and connected in a one-to-one connection relationship.

The input terminals N1 to N5 are connected to signal lines 3, 3 for inputting signals from an operation unit of the terminal, for example, remote controllers R1 to R5. As a result, operation signals from the operation unit of each terminal are transmitted to the input terminals N1 to N
5. The hot water valves B1 to B5 are sent to the respective hot water valves B1 to B5 via the control device and the output terminals D1 to D5, so that the respective hot water valves B1 to B5 can be opened and closed.

[0008]

By the way, in the above-mentioned conventional hot water heating system, an input terminal and an output terminal are provided so that one hot water valve or a plurality of hot water valves can be controlled by one input signal. Changeover switch 12 that can be switched to be connected in a one-to-one or one-to-many connection relationship
Are provided on the control board 5.

FIG. 7 shows a state in which the changeover switch 12 is set to be switched so that one input terminal N1 is connected to two output terminals D1 and D2.
Remote terminals R1 and R2 of the terminal are connected to N2 by signal lines 3 and 3, respectively, and the terminal M1 is connected to the hot water valve B1 via a hot water pipe, and the terminal is connected to the hot water valve B2 via the same hot water pipe. Machine M2 is connected.

Here, since the input terminal and the output terminal are set in a one-to-two connection relationship by the setting of the changeover switch 12, the input terminal N2 and the output terminal D2 are not connected. Therefore, even if the remote control R2 as the operation unit of the terminal M2 is connected to the input terminal N2 via the signal line 3, the operation signal of the remote control R2 does not reach the control device, or the hot water valve B2 does not reach the control device. Is not controlled to open and close, so that hot water is not supplied from the heat source device 2 to the terminal device M2.

As described above, when the number of the changeover switches 12 is set to one-to-many, among the plurality of input terminals N1 to N5, for example, the output terminal D such as the aforementioned input terminal N2 is provided.
There is a so-called extra input terminal that cannot be connected in connection with 2 and when the signal line 3 from the remote controller R2 is connected to the extra input terminal N2, there is a problem that incorrect wiring occurs.

The present invention has been made in view of the above-mentioned circumstances, and when there is an extra input terminal in a connection relationship between an input terminal and an output terminal by setting a changeover switch, hot water is supplied to the extra input terminal. It is an object of the present invention to provide a hot water heating system capable of clearly notifying a wrong wiring when a signal line from another operation unit for operating a terminal is connected. Also, as another purpose, when it is determined that the wiring is incorrect, the test operation of the hot water terminal operated by the operation unit determined to be incorrect wiring is not performed, thereby shortening the test operation time of the entire system. Is to be able to do it.

[0013]

In order to achieve the above object, according to the present invention, a plurality of input terminals for inputting a control signal from an operation unit for operating a hot water terminal, and one of these input terminals is provided. A plurality of output terminals connected in a one-to-one or one-to-one connection relationship, an on-off valve connected in connection with each output terminal and controlling an amount of hot water supplied to the hot water terminal, and a connection between the input terminal and the output terminal In a hot water heating system including a switching unit that sets a connection relationship, when the switching unit is switched to a one-to-many connection relationship,
When a signal line from another operation unit for operating another hot water terminal is connected to the remaining input terminal in the connection relationship, display means is provided for displaying that the connection state is incorrect wiring. And

According to a second aspect of the present invention, in the hot water heating system according to the first aspect, the display means includes an indicator light provided corresponding to each of a plurality of input terminals.

According to a third aspect of the present invention, in the hot water heating system according to the first or second aspect, the display means includes a seven-segment display.

According to a fourth aspect of the present invention, in the hot water heating system according to any one of the first to fourth aspects, the determination of the erroneous wiring is performed at the start of the test operation of the hot water terminal.

According to a fifth aspect of the present invention, in the hot water heating system according to any one of the first to fifth aspects, when the miswiring is determined, the hot water operated by the operation unit determined to be the miswiring. It is characterized in that trial operation of the terminal is not performed.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram illustrating an entire hot water heating system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram illustrating a connection relationship between a setting position of a changeover switch and input / output terminals, and FIG. 3 is a control diagram of FIG. FIG. 2 is a block diagram illustrating a schematic configuration of the device.

In FIG. 1, this hot water heating system 1
Is a schematic configuration including a heat source unit 2 installed outdoors and a plurality of terminals M1 to M3 (hot water floor heating panels) connected to the heat source unit via a hot water going pipe 4A and a hot water returning pipe 4B. It is.

The terminals M1 to M3 are equipped with remote controllers R1 to R3 having switches such as an operation on / off switch, and these remote controllers R1 to R3 are usually provided with a wall or the like of a heated room in which the terminals are installed. , And is electrically connected to the control board 5 of the heat source device 2 via the signal lines 3 and 3. And in the general home, each remote control R1
One R3 is installed in one room.

The heat source unit 2 has a control board 5 disposed therein. The control board 5 has a plurality of input terminals N1 to N5,
A plurality of output terminals D1 to D5, a changeover switch 12, a control device 8 having a microcomputer 7, a plurality of terminal lamps L1 to L5
A three-digit seven-segment display 14 for mainly displaying various errors is provided.

Of the plurality of input terminals N1 to N5, the input terminals N1 to N3 are connected to the respective signal lines 3, 3 of the plurality of remote controllers R1 to R3, and are used for operating signals for operating the terminals M1 to M3. Is input.

The plurality of output terminals D1 to D5 are connected to the plurality of input terminals N1 to N5 in a one-to-one or one-to-one connection relationship.

The changeover switch 12 switches the connection relationship between the input terminals N1 to N5 and the output terminals D1 to D5 to one-to-one or one-to-many, as described below, by switching two switches. Things.

Next, the setting of the changeover switch 12 will be described. In FIG. 2, when the changeover switch 12 is set to the position of the A mode, each of the input terminals N1 to N5 and each of the output terminals D1 to D5 have a one-to-one correspondence, for example, based on a signal input to the input terminal N1. The hot water valve B1 is controlled to open and close based on a signal input to the input terminal N2.

When the changeover switch 12 is set to the position of the B mode, the input terminal N1 corresponds to the output terminals D1 and D2, the input terminal N3 corresponds to the output terminals D3 and D4, and the input terminal N5 corresponds to the output terminal D5. Corresponding to Thereby, for example, the hot water valves B1 and B2 are based on the signal input to the input terminal N1, and the hot water valves B3 and B4 are based on the signal input to the input terminal N3. The opening and closing of the hot water valve B5 is controlled based on this.

When the changeover switch 12 is set to the C-mode position, the input terminal N1 corresponds to the output terminals D1 to D4, and the input terminal N5 corresponds to the output terminal D5. The hot water valves B1, B2, B3, and B4 are controlled to open and close based on the signal received, and the hot water valve B5 is controlled to open and close based on a signal input to the input terminal N5.

Further, when the changeover switch 12 is set to the position of the D mode, the input terminals N1 correspond to all of the output terminals D1 to D5, whereby the hot water valves B1 to B5 are turned on based on the signal input to the input terminal N1. All of B5 are controlled to open and close.

FIG. 3 is a block diagram showing a schematic configuration of the control device 8 described above. The control device 8 has a microcomputer 7, and the input side of the microcomputer 7 is connected to the plurality of input terminals N1 to N5, various sensors (not shown), and the like. , The plurality of output terminals D1
To D5, a plurality of terminal lamps L1 to L5, a 7-segment display 14, and the like.

In FIG. 1, the heat source unit 2 has a hot water going pipe 15 and a return pipe 16, and a hot water going header 17 and a return header 18 are provided at the tips of the hot water going pipe 15 and the return pipe 16. The plurality of hot water valves (opening / closing valves) B1 to B5 (B1 to B3 in FIG. 1) are attached to the hot water going header 17 and these hot water valves B1 to B3 and the hot water going pipe 4A, 4A, each hot water terminal M1 to M3 such as a floor heating panel is connected to the hot water outflow pipe 15 of the heat source device 2, and each terminal M1 to M
3 is connected to the return pipe 16 via the hot water return pipes 4B, 4B and the return header 18.

A heat source (not shown) such as a storage tank, a circulating pump, a heat exchanger, and a burner is housed inside the heat source unit 2. The circulating water is caused to flow into the heat exchanger, and the heat exchanger generates hot water by the heating action of the heating source. The hot water thus generated is circulated and supplied to each of the terminal devices M1 to M3.

In the hot water heating system 1 configured as described above, for example, when the operation on / off switch of the remote control R1 is turned on, the operation on signal is transmitted through the signal line 3 and the input terminal N1 to the microcomputer 7 of the control device 8. This causes the microcomputer 7 to start the combustion of the heating source and to drive the circulation pump, and the hot water valve B1 corresponding to the terminal M1 operated by the turned on remote control R1 opens and closes. By repeating the opening and closing operation of the hot water valve B1, the circulating water (hot water) heated in the heat exchanger is circulated and supplied to the terminal device M1, and the heated room in which the terminal device M1 is laid is heated. Done. Also, the terminals M1 to M1
M5 may be installed in one room as one hot water path, or may be installed in one room in combination as a plurality of hot water paths, and when installed in one room as one hot water path, It goes without saying that one remote control is attached to one room. However, even when a plurality of hot water paths are combined and installed in one room, one remote control is usually attached.

FIG. 4 is an explanatory view for explaining a display in the case of erroneous wiring of the heat source unit 2 in one embodiment of the present invention. The same components as those in the conventional example of FIGS. A detailed description of the lever is omitted.

The case where the changeover switch 12 is set to the position of the B mode shown in FIG. 2 will be described. Remote controllers R1 and R2 operating different terminals are input terminals via signal lines 3 and 3, respectively. The hot water valve B1 is connected to the output terminal D1, and the hot water valve B2 is connected to the output terminal D2.

At this time, if a terminal is not connected to the hot water valve B3, the input terminal N2 becomes an extra terminal, and the connection between the extra input terminal N2 and the signal line 3 from the remote controller R2 is caused by incorrect wiring. is there.

Here, when the installation work, plumbing work and wiring work of the heat source unit 2 and each of the terminals M1 and M2 are completed and the trial operation is started, first, the terminal lamp L2 corresponding to the input terminal N2 is turned on. By turning on the terminal lamp L2, the signal line 3 connected to the input terminal N2, that is, the remote controller R2
This indicates that the connection of the signal line 3 is erroneous wiring, and that the surplus input terminal N2 exists due to the setting of the changeover switch 12 in the 7-segment display 14 for error display. The connection of the signal line 3 to the erroneous wiring is displayed using numbers or symbols.

In this way, the worker of the construction work can recognize from the display on the 7-segment display 14 that there is an erroneous wiring at the extra input terminal N2, and input the erroneous wiring part by turning on the terminal lamp L2. The terminal N2 can be recognized.

FIG. 5 is a flowchart for judging erroneous wiring of a signal line. When the test operation is started after the installation work of the hot water heating system 1 is completed, the control device 6 executes the test operation in order from the terminal device M1 to the terminal device M2 and the installed terminal devices.

In step S1, the changeover switch 12
Is determined to be in a mode in which a single input terminal (for example, the input terminal N1) controls a plurality of hot water valves (for example, the hot water valves B1 and B2) (for example, the mode of B in FIG. 2). Therefore, when it is determined that the changeover switch 12 is set to one-to-many mode, the process proceeds to step S2, and the terminal (for example, M2) uses the hot water valve (for example, B2) of the heat source unit 2. Is determined. At this time, if it is determined that the terminal M2 uses the hot water valve B2, the process proceeds to step S3, where it is determined whether the connected input terminal N2 cannot control the hot water valve B2. If it is determined in step S3 that the hot water valve B2 cannot be controlled, the process proceeds to step S4,
In this step S4, an error warning display operation is executed, the display lamp L2 is turned on, and a number indicating an incorrect wiring, for example, “763” is displayed on the 7-segment display 14.

In step S1, when the changeover switch 12 is set so that the input terminal and the hot water valve correspond one-to-one (A mode in FIG. 2), the error warning is released. (Step S5). Similarly, if the terminal does not use the hot water valve in step 2, or if the hot water valve can be controlled in step S3, the error warning is released.

Further, the control device 8 executes the test operation in the order of the terminal M1 to the terminal M2 and the installed terminals, but as described above, the remote controller operating a certain terminal determines that the wiring is incorrect. In this case, the test operation of the terminal operated by the remote controller determined to be incorrect wiring is omitted, and the heat source device 2 is shifted to the test operation of the next terminal.
Control.

As described above, when the switching means is switched to a one-to-many connection relationship, as shown in FIG. 4, extra connection is established between the input terminals N1 to N5 and the output terminals D1 to D5. When the signal line 3 from another remote controller (for example, R2) for operating another terminal is connected to the terminal (for example, N2), the corresponding input terminal (for example, N2) at the start of the test run. Is turned on, and the fact that the wiring is incorrect is displayed on the seven-segment display 14, so that the location of the incorrect wiring of the signal line can be easily found.

Although the present invention has been described based on one embodiment, the present invention is not limited to this. In this embodiment, the input terminal, the output terminal, the hot water valve, etc.
Although the number of heat source units is described, the number is not limited.

[0044]

As described above, in the connection relationship between the input terminal and the output terminal, when the switching means is switched to a one-to-many connection relationship, there is an extra input terminal in the connection relationship. When a signal line from another operation unit that operates the hot water terminal is connected to the extra input terminal,
At the start of the test run, a 7-segment display indicates that the wiring is incorrect, or indicates which input terminal has the incorrect wiring by turning on the indicator light, so that the incorrect wiring can be easily identified. Thus, the time required for correcting incorrect wiring can be reduced.

Further, when it is determined that the wiring is incorrect, the test operation of the hot water terminal operated by the operation unit determined to be incorrect wiring is not performed, so that the test operation time of the entire system can be reduced. .

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a hot water heating system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a relationship between a setting position of a changeover switch and input / output terminals.

FIG. 3 is a block diagram illustrating a schematic configuration of a control device of FIG. 1;

FIG. 4 is an explanatory diagram illustrating an erroneous wiring display state of the heat source device according to the embodiment of the present invention.

FIG. 5 is a flowchart for determining erroneous wiring of a signal line.

FIG. 6 is an explanatory diagram illustrating an example of signal wiring of a heat source device in a conventional hot water heating system.

FIG. 7 is an explanatory diagram illustrating an example of erroneous wiring of the signal wiring in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water heating system 2 Heat source device 3 Signal line 4A Hot water piping 4B Hot water return piping 5 Control board 7 Microcomputer 8 Control device 12 Changeover switch (switching means) 14 7-segment display N1-N5 input terminal D1-D5 output terminal B1- B5 Hot water valve (open / close valve) M1 to M5 Hot water terminal R1 to R5 Remote control (operation unit) L1 to L5 Terminal lamp (indicator light)

Continuation of the front page (72) Inventor Kiyoma Yamagishi F-term (reference) 3L070 AA02 BB01 DE05 DE09 DG06 3L073 CC11 DD05 DF05

Claims (5)

[Claims] A plurality of input terminals for inputting a control signal from an operation unit for operating a hot water terminal, and one of these input terminals
A plurality of output terminals connected in a one-to-one or one-to-many connection relationship, an on-off valve connected in connection with each output terminal and controlling an amount of hot water supplied to the hot water terminal, the input terminal and the output terminal; And a switching means for setting a connection relationship between the two. When the switching means is switched to a one-to-many connection relationship, another one of operating the hot water terminal to the remaining input terminal in the connection relationship. When the signal line from the operation unit is connected, a display means for displaying that the connection state is incorrect wiring is provided. 2. The hot water heating system according to claim 1, wherein said display means includes an indicator light provided corresponding to each of the plurality of input terminals. 3. The hot water heating system according to claim 1, wherein the display unit includes a seven-segment display. 4. The hot water heating system according to claim 1, wherein the determination of the erroneous wiring is performed when a test operation of the hot water terminal is started. 5. A test operation of the hot water terminal operated by the operation unit determined to be erroneous wiring when the erroneous wiring is determined, is not performed.
The hot water heating system according to any one of the above.